Still happens as of 1.12.
Still happens as of 1.12. I've uploaded an image that uses a custom resource pack that showcases this issue.
Still happens as of 1.12-pre7
I can confirm that this is no longer an issue in 1.8.1 pre3.
Oh i'm sorry, I tried searching before I made this but I could not find that.
Still happens as of 1.12.1. I've uploaded an image that shows the issue a little better.
EDIT: Forgot to provide info, here it is:
Custom world preset: https://pastebin.com/g57DP205
Seed: 490287182
Coordinates: 235290 62 70437